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Low-dimensional hybrid perovskites as high performance anodes for alkali-ion batteries

Abstract

State-of-the-art Li (or Na) ion batteries work by insertion/ extraction of the alkali metal ion into a porous electrode material, where the overall capacity is strongly dependent on accessibility of the host material interior to the ions. On the other hand, the performance stability depends on various factors governed by the specific constitution of the electrode. Here we show for that molecularly engineered low-dimensional hybrid perovskites can work as excellent anode materials for alkali-ion batteries. We measure a high reversible capacity of 646 mAh g-1 at 100 mA g-1 with good stability tested up to 250 cycles for the benzidine mediated lead iodide based 1D system. An ex-situ analysis of the electrodes reveals that the storage primarily occurs via Lix(or Nax)Pb alloying/de-alloying process. We anticipate that these results open a new direction for the use of low-dimensional hybrid perovskites for energy storage applications.

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Publication details

The article was received on 24 May 2017, accepted on 24 Jul 2017 and first published on 24 Jul 2017


Article type: Paper
DOI: 10.1039/C7TA04529H
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    Low-dimensional hybrid perovskites as high performance anodes for alkali-ion batteries

    M. Tathavadekar, S. Krishnamurthy, A. Banerjee, S. Nagane, Y. Gawli, A. B. Suryawanshi, S. K. Bhat, D. Puthusseri, A. Mohite and S. Ogale, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA04529H

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